from Wiktionary.org:
Adjective[edit]
ostensible (comparative more ostensible, superlative most ostensible)
- Apparent, evident; meant for open display. [quotations ▼]
- Appearing as such; being such in appearance; professed, supposed (rather than demonstrably true or real).
- The ostensible reason for his visit to New York was to see his mother, but the real reason was to get to the Yankees game the next day.